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AUSCERT External Security Bulletin Redistribution
Vulnerability in DNS Server Could Allow Denial of Service
14 March 2012
AusCERT Security Bulletin Summary
Product: Microsoft Windows
Operating System: Windows Server 2003
Windows Server 2008
Windows Server 2008 R2
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2012-0006
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Microsoft Security Bulletin MS12-017 - Important
Vulnerability in DNS Server Could Allow Denial of Service (2647170)
Published: Tuesday, March 13, 2012
This security update resolves a privately reported vulnerability in
Microsoft Windows. The vulnerability could allow denial of service if a
remote unauthenticated attacker sends a specially crafted DNS query to
the target DNS server.
This security update is rated Important for all supported editions of
Windows Server 2003, 32-bit and x64-based editions of Windows Server
2008, and x64-based editions of Windows Server 2008 R2. For more
information, see the subsection, Affected Software, in this section.
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 R2 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1
DNS Denial of Service Vulnerability - CVE-2012-0006
A denial of service vulnerability exists in the way that the DNS server
improperly handles objects in memory when looking up the resource
record of a domain. An attacker that successfully exploited this
vulnerability could cause the DNS server on the target system to stop
responding and automatically restart.
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